DTClookup.com

Search DTC

P1645 – Lexus DTC

Lexus DTC P1645 – Body ECU Malfunction

DTC P1645 meaning on Lexus

DTC P1645 on a Lexus indicates a malfunction in the Body Electronic Control Unit (ECU). The Body ECU is responsible for controlling various electrical functions within the vehicle, such as lighting, power windows, door locks, and other body-related systems.

Lexus DTC P1645 symptoms

Symptoms of DTC P1645 on a Lexus may include:

  • Malfunctioning power windows
  • Inoperative interior lights
  • Issues with door locks
  • Problems with exterior lighting

Lexus DTC P1645 causes

Common causes of DTC P1645 on a Lexus include:

  • Faulty Body ECU
  • Wiring or connector issues
  • Corrosion in electrical connections

Lexus DTC P1645 seriousness

The seriousness of DTC P1645 on a Lexus depends on the extent of the malfunction. While it may not directly affect the drivability of the vehicle, it can impact the convenience and safety features controlled by the Body ECU.

How to diagnose DTC P1645 on Lexus

To diagnose DTC P1645 on a Lexus, a mechanic may perform the following steps:

  1. Use a diagnostic scanner to retrieve the trouble codes
  2. Inspect the wiring and connectors related to the Body ECU
  3. Check for any signs of corrosion or damage
  4. Test the Body ECU for proper functionality

How to fix DTC P1645 on Lexus

To fix DTC P1645 on a Lexus, the following steps may be taken:

  1. Repair or replace any damaged wiring or connectors
  2. Clean any corroded connections
  3. Replace the Body ECU if deemed faulty
  4. Clear the trouble codes and test the system

How to erase DTC P1645 on Lexus

To erase DTC P1645 on a Lexus, follow these steps:

  1. Use a diagnostic scanner to clear the trouble codes
  2. Ensure the underlying issue has been resolved
  3. Perform a test drive to confirm the repair

Recommended tools for Lexus diagnostics

Explore our expert picks: The Best OBD2 Scanners for 2025

Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter

← All Lexus Diagnostic Trouble Codes

Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.